XML 20 R55.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Loans and Allowance for Credit Losses - Additional Information (Detail) (USD $) | 3 Months Ended |  | 3 Months Ended |  | 3 Months Ended |  | 3 Months Ended |  | 3 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2013 | Mar. 31, 2012 | Dec. 31, 2012 | Mar. 31, 2013 Two Commercial Real Estate Loans [Member] | Mar. 31, 2013 Western Pennsylvania Non-Profit Healthcare Facility [Member] | Mar. 31, 2013 Western Pennsylvania Student Housing Project [Member] | Mar. 31, 2013 Consumer Loan [Member] | Mar. 31, 2013 Construction Loan in Florida [Member] | Mar. 31, 2012 Western Pennsylvania Non-Profit Corporation [Member] | Mar. 31, 2013 Nonaccrual Consumer Loans [Member] | Mar. 31, 2013 Accruing Loans [Member] Hotel Resort Syndication Loan in the State of Washington [Member] | Mar. 31, 2013 Non Accrual Loans [Member] | Mar. 31, 2013 Impaired Loans [Member] | Mar. 31, 2012 Impaired Loans [Member] | Mar. 31, 2013 Impaired Loans [Member] Reserve for off balance sheet activities [Member] | Mar. 31, 2013 Impaired Loans [Member] Real Estate Developer In Eastern Pennsylvania [Member] | Mar. 31, 2013 Impaired Loans [Member] Commercial Real Estate Loan in Nevada [Member] | Dec. 31, 2010 Impaired Loans [Member] Western Pennsylvania Real Estate Developer [Member] | Mar. 31, 2013 Impaired Loans [Member] Western Pennsylvania Real Estate Developer [Member] | Mar. 31, 2013 Impaired Loans [Member] Western Pennsylvania [Member] | Mar. 31, 2013 Impaired Loans [Member] Construction Loan in Florida [Member] | Mar. 31, 2013 Loans Held For Sale [Member] | Mar. 31, 2012 Loans Held For Sale [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in nonperforming loans |  |  |  |  |  |  |  |  |  |  | $ 3,800,000 | $ 2,700,000 | $ (29,300,000) |  |  | $ (17,200,000) | $ (2,500,000) |  |  |  |  |  |
Charge-offs | 10,476,000 | 4,992,000 |  | 5,300,000 | 2,800,000 | 2,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,800,000 |  |  |
Nonaccrual loans |  |  |  |  |  |  |  |  |  | 1,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Decrease in specific allowance for nonperforming loans |  |  |  |  |  |  |  |  |  |  |  |  | 5,100,000 |  |  |  |  |  |  |  |  |  |
Unfunded commitments related to nonperforming loans |  |  |  |  |  |  |  |  |  |  |  |  | 1,200,000 |  |  |  |  |  |  |  |  |  |
Off balance sheet reserve to nonperforming loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 200,000 |  |  |  |  |  |  |  |
Loans held for sale | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total gains or losses included in earnings | 126,000 | 1,307,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 126,000 | 1,768,000
Nonaccrual | 64,141,000 |  | 94,518,000 |  |  |  |  |  |  |  |  |  | 18,700,000 |  |  |  |  |  |  | 3,500,000 |  |  |
Non Accrual Status Of Loans After Number Of Days Past Due |  |  |  |  |  |  | 150 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financing receivable recorded investment nonaccrual status remaining portion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 44,100,000 |  | 17,300,000 |  |
Principal payment of nonaccrual loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,000,000 |  |  |  |  |
Nonaccrual loans charge off |  |  |  |  |  |  |  |  | 3,200,000 |  |  |  |  |  |  |  |  | 15,400,000 |  |  |  |  |
Impaired loans under nonperforming status |  |  |  |  |  |  |  | 20,800,000 |  |  |  |  |  |  |  |  |  |  |  |  | 3,500,000 |  |
Troubled debt restructured loans decreased |  |  |  |  |  |  |  |  |  |  |  |  | 17,300,000 |  |  |  |  |  |  |  |  |  |
Commitments related to troubled debt restructured loans increased |  |  |  |  |  |  |  |  |  |  |  |  | (500,000) |  |  |  |  |  |  |  |  |  |
Loans with modifications to rate and payment due to reamortization |  |  |  |  |  |  |  |  |  |  |  |  | $ 500,000 | $ 97,000 |  |  |  |  |  |  |  |  |

X
- Definition Amount of Non Accrual Status Loan + References No definition available. + Details
Name: | fcf_AmountOfNonAccrualStatusLoan
Namespace Prefix: | fcf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Decrease in specific allowance for nonperforming loans. + References No definition available. + Details
Name: | fcf_DecreaseInSpecificAllowanceForNonperformingLoans
Namespace Prefix: | fcf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Financing receivable recorded investment nonaccrual status remaining portion. + References No definition available. + Details
Name: | fcf_FinancingReceivableRecordedInvestmentNonaccrualStatusRemainingPortion
Namespace Prefix: | fcf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Impaired loans under nonperforming status. + References No definition available. + Details
Name: | fcf_ImpairedLoansUnderNonPerformingStatus
Namespace Prefix: | fcf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Increase (decrease) in nonperforming loans. + References No definition available. + Details
Name: | fcf_IncreaseDecreaseInNonperformingLoans
Namespace Prefix: | fcf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Increase In Commitments Related To Troubled Debt Restructured Loans + References No definition available. + Details
Name: | fcf_IncreaseInCommitmentsRelatedToTroubledDebtRestructuredLoans
Namespace Prefix: | fcf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Loans with modifications to rate and payment due to reamortization. + References No definition available. + Details
Name: | fcf_LoansWithModificationsToRateAndPaymentDueToReamortization
Namespace Prefix: | fcf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Nonaccrual loans charge off. + References No definition available. + Details
Name: | fcf_NonaccrualLoansChargeOff
Namespace Prefix: | fcf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Non Accrual Status Of Loans After Number Of Days Past Due + References No definition available. + Details
Name: | fcf_NonAccrualStatusOfLoansAfterNumberOfDaysPastDue
Namespace Prefix: | fcf_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Off balance sheet reserve to nonperforming loans. + References No definition available. + Details
Name: | fcf_OffBalanceSheetReserveToNonperformingLoans
Namespace Prefix: | fcf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Principal payment of nonaccrual loans. + References No definition available. + Details
Name: | fcf_PrincipalPaymentOfNonaccrualLoans
Namespace Prefix: | fcf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Troubled debt restructured loans decreased. + References No definition available. + Details
Name: | fcf_TroubledDebtRestructuredLoansDecreased
Namespace Prefix: | fcf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Unfunded commitments related to nonperforming loans. + References No definition available. + Details
Name: | fcf_UnfundedCommitmentsRelatedToNonperformingLoans
Namespace Prefix: | fcf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of gain (loss) recognized in earnings, arising from assets measured at fair value on a recurring basis using unobservable inputs (level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of direct write-downs of financing receivables charged against the allowance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5111-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The aggregate carrying amount of loans receivable that will be sold to other entities. Includes mortgage and all other loans (collectively, loans) not classified as held for investment. Such loans are stated at the lower of cost or market, or elected fair value. Mortgage loans exclude mortgage-backed securities which are considered a debt security (other loan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 65 -Paragraph 4, 5, 6, 7, 9, 12, 28, 29 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 13 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph a -Article 9 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 65 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Section 563c.102 -Paragraph 8 -Subparagraph h -Chapter V -Subsection I -LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 35 -Paragraph 49 -URI http://asc.fasb.org/extlink&oid=16382521&loc=d3e3084-111518 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6490209&loc=d3e48214-111002 + Details
Name: | us-gaap_LoansReceivableHeldForSaleNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant